Full-automatic multi-process synchronous machining composite numerical control machine tool

Abstract

The present application relates to the field of numerical control machine tool, specifically, a kind of full-automatic multi-process synchronous machining composite numerical control machine tool, it includes machine tool body, machine tool body includes processing table, three-jaw chuck for clamping the workpiece to be processed is rotationally arranged at processing table, annular mounting plate is rotationally arranged at the periphery of three-jaw chuck at processing table, annular mounting plate can move in horizontal plane, at least 3 tool driving motors are arranged at annular mounting plate, the rotating shaft of tool driving motor is provided with tool for processing workpiece, the tool at each tool driving motor is not identical;Tool driving motor can move along the radial direction of annular mounting plate to make tool process workpiece.The present application can work synchronously or continuously by multiple groups of different tools on annular mounting plate, without transferring workpiece between multiple devices, reduce the time of workpiece loading and unloading, handling and repositioning, greatly improve the overall efficiency of multi-process machining.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tools, and more specifically, to a fully automatic multi-process synchronous machining composite CNC machine tool. Background Technology

[0002] In modern industrial production, CNC machine tools, as automated machine tools equipped with program control systems, play a crucial role. They can logically process programs with control codes or other symbolic instructions, decode them, and thus enable the machine tool to move and process parts. Existing CNC machine tools typically consist of a CNC system, a servo system, a detection system, a mechanical transmission system, and other auxiliary systems. Their working principle involves inputting pre-programmed machining instructions—including the machining process route, process parameters, tool trajectory, displacement, cutting parameters, and auxiliary functions—into the CNC device as digital commands. The CNC device processes and calculates these commands, then sends corresponding control signals to the servo system. This drives the servo motors to move the machine tool's actuators (such as the spindle and worktable) along a predetermined trajectory and speed, thereby achieving automated machining of the parts. With their advantages of high precision, high efficiency, high flexibility, and ability to process complex parts, existing CNC machine tools have been widely used in many fields such as machinery manufacturing, aerospace, automobile manufacturing, and mold processing, greatly promoting the development of the manufacturing industry. However, existing machine tools have certain limitations. In actual production processes, machining a part often requires multiple different operations, such as turning, milling, drilling, and boring. However, existing single machine tools can typically only complete one of these operations. When different operations are needed, the part must be transferred from one machine tool to another, requiring different machine tools for processing. This method not only increases the loading, unloading, and handling time of parts, reducing production efficiency, but also easily introduces positioning errors during multiple loading, unloading, and transfers, affecting the machining accuracy of the parts. Furthermore, using multiple machine tools increases equipment investment costs and floor space requirements, hindering the optimal allocation of production resources. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0004] A fully automatic multi-process synchronous machining composite CNC machine tool includes a machine tool body, which includes a machining table. A three-jaw chuck for clamping the workpiece is rotatably mounted on the machining table. An annular mounting plate located around the three-jaw chuck is also rotatably mounted on the machining table. The annular mounting plate is movable in a horizontal plane. At least three tool drive motors are mounted on the annular mounting plate. The shafts of the tool drive motors are equipped with tools for machining the workpiece. The tools at each tool drive motor are different. The tool drive motors are capable of moving radially along the annular mounting plate to enable the tools to machine the workpiece.

[0005] As a preferred embodiment of the present invention, a mounting bracket is provided at the processing table. The mounting bracket includes two vertical plates disposed at the worktable. The two vertical plates are arranged opposite each other along the moving direction of the horizontal plane of the annular mounting plate. A connecting rod is provided between the two vertical plates, and the two ends of the connecting rod are respectively connected to the vertical plates. The connecting rod passes through the annular mounting plate, and a chuck drive motor is provided in the middle of the connecting rod. The rotating shaft of the chuck drive motor is connected to the base of the three-jaw chuck.

[0006] As a preferred embodiment of the present invention, the processing table is provided with an annular mounting seat located between the two vertical plates. One end of the annular mounting seat is recessed inward to form a mounting groove for placing the annular mounting plate. The annular mounting plate is rotatably disposed in the mounting groove. An annular retaining ring for limiting the annular mounting plate in the mounting groove is bolted to the annular mounting seat.

[0007] As a preferred embodiment of the present invention, a gear ring mounting flange is formed by protruding from the center of the annular mounting plate toward the end away from the mounting groove. A gear ring is provided at the gear ring mounting flange. A mounting plate drive motor is provided at the end face of the annular mounting seat away from the mounting groove. A gear that meshes with the gear ring is provided at the shaft of the mounting plate drive motor.

[0008] As a preferred embodiment of the present invention, a bearing located in a mounting groove is sleeved on the outer side wall of the annular mounting plate.

[0009] As a preferred embodiment of the present invention, the lower end of the annular mounting base extends outward to form a mounting part, the mounting part is provided with a mounting part through hole, a first lead screw nut is provided in the mounting part through hole, a lead screw mounting bracket is provided at the processing table, a first lead screw is rotatably provided at the lead screw mounting bracket, and a first lead screw motor for driving the first lead screw is provided at the lead screw mounting bracket.

[0010] As a preferred embodiment of the present invention, the two ends of the annular mounting base extend outward to form a limiting part, and a limiting part through hole is provided at the limiting part. An optical axis passing through the limiting part through hole is provided between the two vertical plates, and the two ends of the optical axis are respectively connected to the two vertical plates.

[0011] As a preferred embodiment of the present invention, the annular mounting plate is provided with a mounting mechanism for mounting a tool drive motor. The mounting mechanism includes two slide rails and a mounting base. The mounting base is provided with a slider that cooperates with the slide rails. The mounting mechanism also includes a second lead screw rotatably mounted on the annular mounting plate. The bottom end face of the mounting base is provided with a second lead screw nut that cooperates with the second lead screw. The annular mounting plate is provided with a second lead screw motor for driving the second lead screw to rotate.

[0012] As a preferred embodiment of the present invention, the mounting groove is provided with a plurality of annular grooves in the shape of a ring, a conductive ring is provided in the annular groove, a metal connector is provided at the conductive ring, the end of the metal connector extends through the bottom end face of the mounting groove and protrudes from the annular mounting seat, and the end of the metal connector protruding from the annular mounting seat is connected to the circuit system; the annular mounting plate is provided with conductive post through holes communicating with the annular grooves, a conductive post is provided in the conductive post through holes, one end of the conductive post is in contact with the conductive ring, and the other end of the conductive post is connected to the tool drive motor or the second lead screw motor through a cable.

[0013] As a preferred embodiment of the present invention, the annular mounting plate is provided with a sealing cover covering the through hole of the conductive post, the other end of the conductive post extends out of the sealing cover, the conductive post is provided with a conductive post flange located in the sealing cover, and the sealing cover is provided with a spring sleeved on the conductive post and used to abut one end of the conductive post against the conductive ring.

[0014] The beneficial effects of this invention are as follows: 1. This invention allows multiple sets of different cutting tools on a ring mounting plate to work synchronously or continuously, eliminating the need to transfer workpieces between multiple devices, reducing the time spent on workpiece loading, unloading, handling, and repositioning, and improving the overall efficiency of multi-process processing.

[0015] 2. When using this invention, the workpiece only needs to be clamped once to complete all processes, avoiding the accumulation of positioning errors caused by multiple loading and unloading, and fundamentally improving the machining accuracy of the parts.

[0016] 3. This invention integrates multi-processing functions, replacing the need for multiple traditional equipment, reducing equipment investment costs and production floor space, and facilitating the optimal allocation of production resources. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the fully automatic multi-process synchronous machining composite CNC machine tool in Example 1; Figure 2 This is a cross-sectional view of the fully automatic multi-process synchronous machining composite CNC machine tool in Example 1; Figure 3 for Figure 2 Enlarged view of section A; Figure 4This is a schematic diagram of the mounting plate and the cutting tool in Example 1; Figure 5 for Figure 4 Exploded view of the structure of the central ring mounting plate and the cutting tool; Figure 6 for Figure 4 Exploded view of the mounting plate and cutting tools; Figure 7 This is a schematic diagram of the installation mechanism in Example 1; Figure 8 This is a schematic diagram of the conductive coil in Example 1; Figure 9 This is a half-sectional view of the annular mounting plate in Example 1; Figure 10 for Figure 9 Enlarged view of section B.

[0018] The attached figures are labeled as follows: 100. Machine tool body; 110. Machining table; 120. Three-jaw chuck; 130. Annular mounting plate; 140. Tool drive motor; 141. Tool; 150. Vertical plate; 160. Connecting rod; 170. Annular mounting seat; 180. Optical axis; 210. Lead screw mounting bracket; 220. First lead screw; 230. First lead screw motor; 310. Chuck drive motor; 410. Annular retaining ring; 510. Mounting groove; 520. Bearing; 530. Limiting part; 531. Limiting part through hole; 540. Annular groove; 550. 560. Conductive ring; 610. Mounting part; 620. Gear ring; 630. Mounting plate drive motor; 640. Gear; 650. Mounting part through hole; 660. First lead screw nut; 710. Slide rail; 720. Mounting base; 730. Slider; 740. Second lead screw; 750. Second lead screw nut; 760. Second lead screw motor; 810. Metal connector; 1010. Conductive post through hole; 1020. Conductive post; 1030. Sealing cover; 1040. Conductive post flange; 1050. Spring. Detailed Implementation

[0019] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0020] As shown in Figures 1 to 10, this embodiment provides a fully automatic multi-process synchronous machining composite CNC machine tool, which includes a machine tool body 100, and a machining table 110, which provides a mounting base for various components. The core functional components include: Workpiece clamping mechanism: A three-jaw chuck 120 is rotatably mounted on the machining table 110 for securely clamping the workpiece to be processed. The rotation of the three-jaw chuck 120 is driven by a chuck drive motor 310 (as shown in Figure 3). A mounting bracket is provided on the machining table 110, which includes two vertical plates 150 (arranged opposite each other along the horizontal movement direction of the annular mounting plate 130) and a connecting rod 160 connecting the two vertical plates 150 (as shown in Figure 2). The connecting rod 160 passes through the annular mounting plate 130, providing a mounting base for the chuck drive motor 310 and also acting as an auxiliary guide for the rotation of the annular mounting plate 130. At the same time, the vertical plates 150 also provide mounting support for the optical axis 180, further ensuring the movement stability of the annular mounting seat 170. The chuck drive motor 310 is fixed in the middle of the connecting rod 160, and its rotating shaft is directly connected to the base of the three-jaw chuck 120, which can drive the workpiece to rotate synchronously to cooperate with processing.

[0021] Multi-tool machining mechanism: A ring mounting plate 130 is rotatably provided at the machining table 110, which is located around the three-jaw chuck 120 and is used to install multiple sets of machining tools; at least 3 tool drive motors 140 are provided at the ring mounting plate 130, and each tool drive motor 140 has a tool 141 on its rotating shaft, and each tool 141 is of a different type (such as turning tool, milling cutter, drill bit, etc.), which can respectively realize different processes such as turning, milling, drilling.

[0022] In use, the workpiece to be processed is first fixed by the three-jaw chuck 120, and at least three sets of different types of cutting tools (such as turning tools, milling cutters, and drill bits) are installed on the annular mounting plate 130 around it, which can cover a variety of processing steps.

[0023] The annular mounting plate 130 is driven to rotate by the mounting plate drive motor 630, enabling rapid switching between different cutting tools. The annular mounting plate 130 is driven to move horizontally by the first lead screw motor 230, adjusting the lateral relative position of the cutting tool and the workpiece. The cutting tool drive motor 140 is driven to move radially by the second lead screw motor 760, enabling the cutting tool to feed the workpiece. When machining the side end of the workpiece is required, the rotation of the annular mounting plate 130 can switch the appropriate cutting tool 141 (such as a side mill, end drill, etc.) to the corresponding position on the side end of the workpiece. The cutting tool drive motor 140 moves radially along the annular mounting plate 130 via the mounting mechanism (slide rail 710, second lead screw 740 transmission), enabling the cutting tool 141 to feed towards the side end of the workpiece. Furthermore, the three-jaw chuck 120, driven by the chuck drive motor 310, can drive the workpiece to rotate, allowing the cutting tool 141 to perform circumferential or end face machining on the side end of the workpiece, thus completing milling, drilling, and other processes on the side end of the workpiece on the same equipment.

[0024] The fully automatic multi-process synchronous machining composite CNC machine tool in this embodiment controls the coordinated operation of each motor through the CNC system. It can realize the same workpiece to complete multiple processes such as turning, milling, and drilling synchronously or continuously by different tools after one clamping, without the need to transfer the workpiece to other equipment.

[0025] Existing CNC machine tools have the following limitations: a single machine can only complete a single machining operation, and multiple operations require workpiece transfer, resulting in low production efficiency, large positioning errors, high equipment costs, and large floor space requirements. This patent, through the aforementioned structure and principle, achieves the following technical effects: Improve production efficiency: Multiple sets of different tools on the annular mounting plate 130 can work synchronously or continuously without transferring the workpiece between multiple machines, reducing the time for workpiece loading, unloading, handling and repositioning, and improving the overall efficiency of multi-process processing.

[0026] Improve machining accuracy: The workpiece only needs to be clamped once to complete all processes, avoiding the accumulation of positioning errors caused by multiple loading and unloading, and fundamentally improving the machining accuracy of the parts.

[0027] Reduce production costs: The fully automatic multi-process synchronous machining composite CNC machine tool in this embodiment integrates multi-process machining functions, replacing the need for multiple traditional machines, reducing equipment investment costs and production floor space, and facilitating the optimal allocation of production resources.

[0028] The annular mounting plate 130 is capable of both rotational and horizontal movement to facilitate tool switching and machining position adjustment. The annular mounting plate 130 is mounted on the machining table 110 via an annular mounting base 170 (as shown in Figure 4). Figure 5 (As shown). One end of the annular mounting base 170 is recessed inward to form a mounting groove 510. The annular mounting plate 130 is rotatably mounted in the mounting groove 510 via a bearing 520, and an annular retaining ring 410 is bolted to the annular mounting base 170.

[0029] In this embodiment, the bearing 520 reduces the frictional resistance when the annular mounting plate 130 rotates, ensuring smooth and stable rotation, reducing mechanical wear, and extending the service life of the equipment. The annular retaining ring 410 reliably limits the annular mounting plate 130 through bolt connection, preventing it from falling off the mounting groove 510 during rotation or movement, ensuring structural stability, and providing a safe and reliable foundation support for subsequent tool switching and position adjustment.

[0030] The specific driving structure is as follows: a gear ring mounting flange 610 is formed by protruding from the center of the annular mounting plate 130 towards the end away from the mounting groove 510, and a gear ring 620 is provided on it; a mounting plate drive motor 630 is provided at the end face of the annular mounting seat 170 away from the mounting groove 510, and the gear 640 at its shaft meshes with the gear ring 620 (as shown in Figure 6). By rotating the mounting plate drive motor 630 in both directions, the annular mounting plate 130 can be driven to rotate around the central axis, realizing the switching of different tools 141.

[0031] The meshing transmission between gear 640 and gear ring 620 features high transmission accuracy and fast response speed. Combined with the forward and reverse rotation control of the mounting plate drive motor 630, the ring mounting plate 130 can be rotated precisely, ensuring that different tools 141 can be quickly and accurately switched to the machining position. The lower end of the annular mounting base 170 extends outward to form a mounting portion 560. A through hole 650 is provided in the mounting portion 560, and a first lead screw nut 660 is installed inside the hole. A first lead screw 220 is rotatably mounted on the lead screw mounting bracket 210 at the machining table 110. The first lead screw 220 engages with the first lead screw nut 660 and is driven by a first lead screw motor 230 (as shown in Figure 2). When the first lead screw motor 230 is working, it can drive the annular mounting base 170 and the annular mounting plate 130 to move horizontally via lead screw transmission, adjusting the relative position of the tool and the workpiece.

[0032] Through lead screw transmission, in conjunction with the drive of the first lead screw motor 230, the horizontal relative position of the annular mounting plate 130 and the cutting tool 141 with the workpiece can be precisely adjusted to meet the requirements of different workpiece sizes and different processing steps for lateral position. Compared with the traditional manual adjustment method, this structure can significantly improve the accuracy of position adjustment, laying the foundation for ensuring the accuracy of processing dimensions, and is especially suitable for the processing of precision parts.

[0033] To ensure stability during movement, the two ends of the annular mounting base 170 extend outward to form a limiting part 530. An optical axis 180 is inserted through the limiting part through hole 531 at the limiting part 530. The two ends of the optical axis 180 are connected to two vertical plates 150 (part of the mounting bracket) at the processing table 110 to form a guide structure (as shown in Figure 5).

[0034] The engagement between the optical axis 180 and the through hole 531 of the limiting part provides a stable guide for the horizontal movement of the annular mounting base 170 and the annular mounting plate 130, effectively preventing deviation, shaking or jamming during the movement and ensuring the smoothness of the movement process.

[0035] The tool drive motor 140 needs to move radially along the annular mounting plate 130 to enable the tool 141 to feed the workpiece. Its installation and drive structure is shown in Figure 7: The annular mounting plate 130 is equipped with a mounting mechanism, including two parallel slide rails 710 and a mounting base 720 that mates with the slide rails (the mounting base 720 has a slider 730). The mounting mechanism also includes a second lead screw 740 rotatably mounted on the annular mounting plate 130. The bottom end face of the mounting base 720 has a second lead screw nut 750 that mates with the second lead screw 740, and the second lead screw 740 is driven by a second lead screw motor 760. When the second lead screw motor 760 is working, it drives the mounting base 720 and the tool drive motor 140 to move radially along the slide rails 710 via lead screw transmission, thereby enabling the tool 141 to feed or retract.

[0036] The cooperation between the slide rail 710 and the slider 730 ensures the smoothness of the radial movement of the tool drive motor 140, while the transmission between the second lead screw 740 and the second lead screw nut 750 ensures the movement accuracy. The combination of the two can realize the precise radial feed or retraction of the tool 141, meeting the feed requirements of different cutting depths and different machining processes (such as turning, milling, and drilling).

[0037] This equipment involves multiple drive motors, including a chuck drive motor 310, a mounting plate drive motor 630, a first lead screw motor 230, a tool drive motor 140, and a second lead screw motor 760. Their power supply methods are divided into two categories based on the installation location: The chuck drive motor 310 (fixed to the connecting rod 160), the mounting plate drive motor 630 (fixed to the annular mounting base 170), and the first lead screw motor 230 (fixed to the lead screw mounting bracket 210) are all fixed mounting components that can be directly connected to the machine tool's circuit system via cables to achieve stable power supply.

[0038] The tool drive motor 140 and the second lead screw motor 760 are mounted on the annular mounting plate 130 and rotate synchronously with the annular mounting plate 130. The power supply for these components needs to address the issue of continuous conductivity during rotation. The specific structure is as follows (as shown in Figures 8, 9, and 10): The mounting groove 510 of the annular mounting base 170 is provided with several annular grooves 540 in a circular shape. A conductive ring 550 is fixed in the groove. The conductive ring 550 is connected to the circuit system through a metal connector 810 (the end of the metal connector 810 extends out of the annular mounting base 170 through the bottom surface of the mounting groove 510).

[0039] The annular mounting plate 130 is provided with a conductive post through hole 1010 communicating with the annular groove 540. A conductive post 1020 is provided in the hole. One end of the conductive post 1020 is in continuous contact with the conductive ring 550, and the other end is connected to the tool drive motor 140 or the second lead screw motor 760 through a cable.

[0040] To ensure reliable contact between the conductive post 1020 and the conductive ring 550, a conductive post flange 1040 is provided at the conductive post 1020, and a spring 1050 (sleeved onto the conductive post 1020) is provided inside the sealing cover 1030 (covering the conductive post through hole 1010). The elastic force of the spring 1050 keeps one end of the conductive post 1020 against the conductive ring 550 at all times.

[0041] In this structure, the conductive ring 550 is fixed, while the conductive post 1020 rotates with the annular mounting plate 130 and is always in contact with the conductive ring 550, thus achieving continuous power supply during rotation. At the same time, the sealing cover 1030 can prevent dust from entering and ensure power supply stability.

[0042] The working principle of the fully automatic multi-process synchronous machining composite CNC machine tool in this embodiment is as follows: The workpiece to be processed is placed in the three-jaw chuck 120 of the processing table 110. The workpiece is firmly fixed by the clamping structure of the three-jaw chuck 120 to ensure that the workpiece does not loosen during the processing.

[0043] According to the required processing steps of the workpiece (such as turning, milling, drilling, etc.), a tool drive motor 140 is pre-installed on the mounting mechanism of the annular mounting plate 130. Each motor is equipped with a different type of tool 141 (such as turning tool, milling cutter, drill bit, etc.), and the tool drive motor 140 and the second lead screw motor 760 are connected to the conductive post 1020 through a cable to ensure the power supply path.

[0044] The mounting plate drive motor 630 is started, and its shaft drives the gear 640 to rotate. The gear 640 meshes with the gear ring 620 of the annular mounting plate 130, driving the annular mounting plate 130 to rotate around the central axis, rotating the currently required tool 141 to the machining position opposite to the workpiece. During the rotation, the conductive post 1020 rotates synchronously with the annular mounting plate 130 and is always pressed against the conductive ring 550 of the annular mounting base 170 by the elastic force of the spring 1050, ensuring continuous power supply to the tool drive motor 140 and the second lead screw motor 760.

[0045] According to the workpiece machining position requirements, the first lead screw motor 230 is started, driving the first lead screw 220 to rotate. Through the cooperation between the first lead screw nut 660 and the first lead screw 220, the annular mounting base 170 and the annular mounting plate 130 are driven to move horizontally along the guide direction of the optical axis 180, adjusting the lateral relative position of the tool 141 and the workpiece. During the movement, the limiting part 530 slides along the optical axis 180 to ensure smooth movement.

[0046] Start the second lead screw motor 760 to drive the second lead screw 740 to rotate. Through the cooperation of the second lead screw nut 750 and the second lead screw 740, the mounting base 720 is driven to move radially along the slide rail 710 toward the annular mounting plate 130, so that the tool drive motor 140 and the tool 141 are close to the workpiece. At the same time, start the tool drive motor 140 to drive the tool 141 to rotate at high speed to perform the specified process on the workpiece (such as turning the outer circle, milling the plane, etc.).

[0047] Once all processes are completed, turn off all drive motors, release the three-jaw chuck at 120°, remove the processed workpiece, and complete the entire processing flow.

[0048] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A fully automatic multi-process synchronous machining composite CNC machine tool, characterized in that: The machine tool includes a machine body (100), which includes a machining table (110). A three-jaw chuck (120) for clamping the workpiece is rotatably mounted on the machining table (110). An annular mounting plate (130) located around the three-jaw chuck (120) is also rotatably mounted on the machining table (110). The annular mounting plate (130) is movable in the horizontal plane. At least three tool drive motors (140) are provided on the annular mounting plate (130). A tool (141) for machining the workpiece is provided at the shaft of each tool drive motor (140). The tool (141) at each tool drive motor (140) is different. The tool drive motor (140) is movable radially along the annular mounting plate (130) so that the tool (141) can machine the workpiece. The annular mounting plate (130) is provided with a mounting mechanism for mounting a tool drive motor (140). The mounting mechanism includes two slide rails (710) and a mounting base (720). The mounting base (720) is provided with a slider (730) that cooperates with the slide rails (710). The mounting mechanism also includes a second lead screw (740) that is rotatably disposed on the annular mounting plate (130). The bottom end face of the mounting base (720) is provided with a second lead screw nut (750) that cooperates with the second lead screw (740). The annular mounting plate (130) is provided with a second lead screw motor (760) for driving the second lead screw (740) to rotate. The mounting groove (510) is provided with several annular grooves (540) in a circular shape. A conductive ring (550) is provided in the annular groove (540). A metal connector (810) is provided at the conductive ring (550). The end of the metal connector (810) extends through the bottom surface of the mounting groove (510) and out of the annular mounting seat (170). The end of the metal connector (810) extending out of the annular mounting seat (170) is connected to the circuit system. The annular mounting plate (130) is provided with a conductive post through hole (1010) communicating with the annular groove (540). A conductive post (1020) is provided in the conductive post through hole (1010). One end of the conductive post (1020) is in contact with the conductive ring (550). The other end of the conductive post (1020) is connected to the tool drive motor (140) or the second lead screw motor (760) through a cable. A sealing cap (1030) is provided at the annular mounting plate (130) covering the through hole (1010) of the conductive post. The other end of the conductive post (1020) extends out of the sealing cap (1030). A conductive post flange (1040) is provided at the conductive post (1020) in the sealing cap (1030). A spring (1050) is provided in the sealing cap (1030) and sleeved on the conductive post (1020) for abutting one end of the conductive post (1020) against the conductive ring (550).

2. The fully automatic multi-process synchronous machining composite CNC machine tool according to claim 1, characterized in that: A mounting bracket is provided at the processing table (110). The mounting bracket includes two vertical plates (150) set at the worktable. The two vertical plates (150) are arranged opposite each other along the moving direction of the horizontal plane of the annular mounting plate (130). A connecting rod (160) is provided between the two vertical plates (150). The two ends of the connecting rod (160) are respectively connected to the vertical plates (150). The connecting rod (160) passes through the annular mounting plate (130). A chuck drive motor (310) is provided in the middle of the connecting rod (160). The rotating shaft of the chuck drive motor (310) is connected to the base of the three-jaw chuck (120).

3. The fully automatic multi-process synchronous machining composite CNC machine tool according to claim 2, characterized in that: The processing table (110) is provided with an annular mounting seat (170) located between the two vertical plates (150). One end of the annular mounting seat (170) is recessed inward to form a mounting groove (510) for placing the annular mounting plate (130). The annular mounting plate (130) is rotatably disposed in the mounting groove (510). The annular mounting seat (170) is bolted with an annular retaining ring (410) for limiting the annular mounting plate (130) in the mounting groove (510).

4. The fully automatic multi-process synchronous machining composite CNC machine tool according to claim 3, characterized in that: A gear ring mounting flange (610) is formed by protruding from the center of the annular mounting plate (130) towards the end away from the mounting groove (510). A gear ring (620) is provided at the gear ring mounting flange (610). A mounting plate drive motor (630) is provided at the end face of the annular mounting seat (170) away from the mounting groove (510). A gear (640) that meshes with the gear ring (620) is provided at the shaft of the mounting plate drive motor (630).

5. The fully automatic multi-process synchronous machining composite CNC machine tool according to claim 1, characterized in that: A bearing (520) located in a mounting groove (510) is fitted onto the outer wall of the annular mounting plate (130).

6. The fully automatic multi-process synchronous machining composite CNC machine tool according to claim 3, characterized in that: The lower end of the annular mounting base (170) extends outward to form a mounting part (560). The mounting part (560) is provided with a mounting part through hole (650). A first lead screw nut (660) is provided in the mounting part through hole (650). A lead screw mounting bracket (210) is provided at the processing table (110). A first lead screw (220) is rotatably provided at the lead screw mounting bracket (210). A first lead screw motor (230) for driving the first lead screw (220) is provided at the lead screw mounting bracket (210).

7. The fully automatic multi-process synchronous machining composite CNC machine tool according to claim 3, characterized in that: The two ends of the annular mounting base (170) extend outward to form a limiting part (530), and the limiting part (530) is provided with a limiting part through hole (531). An optical axis (180) passing through the limiting part through hole (531) is provided between the two vertical plates (150), and the two ends of the optical axis (180) are respectively connected to the two vertical plates (150).

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